The hallowed halls of academia may have filled with a dizzying array of counter-culture fashion since the 1960s, but like its fellow fashion statement the corduroy jacket, the academic beard continues to hold fast to the faces of many an academic.

Research Interests:Stable isotope biogeochemistry; Microbial alteration of modern and ancient oceanic crust; Evidence for early life on Earth; Formation and evolution of oceanic crust; Geochemical cycling at mid-ocean ridges; Formation of massive sulfide deposits at mid-ocean ridges; The origin and emplacement of ophiolites; Astrobiology.